Endocrine System Homeostasis and Integration of Systems
Endocrine System Homeostasis and Integration of Systems

Endocrine System Homeostasis and Integration of Systems

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A question pack on the endocrine system from the Open Learning Initiative.

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Endocrine System Homeostasis and Integration of Systems Q1

Most endocrine glands produce and secrete their hormones as needed. Which of these pairs of glands are exceptions, storing major amounts of hormone?

A

parathyroid and adrenal cortex

B

pancreas and anterior pituitary

C

thyroid and posterior pituitary

D

ovary and testes

Endocrine System Homeostasis and Integration of Systems Q2

Which of the following glands is NOT a source of a steroid hormone?

A

testes

B

adrenal gland

C

ovaries

D

pancreas

Endocrine System Homeostasis and Integration of Systems Q3

Some glands are stimulated by neurons rather than hormones (tropic) or receptors monitoring an internal stimulus that changes (humoral). Which of the following gland’s secretion is NOT regulated by neural stimuli?

A

pancreas

B

pineal gland

C

adrenal

D

posterior pituitary

Endocrine System Homeostasis and Integration of Systems Q4

Which hormone is secreted by multiple endocrine glands?

A

Aldosterone

B

Inhibin

C

PTH

D

Insulin

Endocrine System Homeostasis and Integration of Systems Q5

The pancreas is both an endocrine and exocrine gland. Which of the following would fit with its endocrine, not exocrine function?

A

pancreatic polypeptide

B

peptidase

C

amylase

D

lipase

Endocrine System Homeostasis and Integration of Systems Q6

Which of the following is not matched with its primary function and its secondary endocrine function?

A

Thymus: Primary function mature T-cells; secondary endocrine function thymosins to aid the immune system.

B

Heart: Primary function is pump blood; secondary endocrine function ANP to reduce blood volume.

C

Kidney: Primary function is filter blood and produce urine; secondary endocrine function promotes satiety.

D

GI tract: Primary function digestion, absorption, excretion of nutrients and wastes. Secondary endocrine function gastrin to aid in digestion.

Endocrine System Homeostasis and Integration of Systems Q7

Which of the following combination of hormones are involved in regulating water homeostasis?

A

ADH, Renin, Aldosterone

B

ADH, Gastrin, Angiotension

C

ADH, Secretin, Aldosterone

D

ACTH, Secretin, Aldosterone

Endocrine System Homeostasis and Integration of Systems Q8

FSH and LH from the anterior pituitary regulate the release of hormones from the gonads. Which classification is correct for these two hormones?

A

trophic

B

steroid

C

tropic

D

neurosecretory

Endocrine System Homeostasis and Integration of Systems Q9

Testosterone and estrogen from the gonads regulate the production of gametes. Which classification is correct for these two hormones?

A

trophic

B

tropic

C

peptide

D

neurosecretory

Endocrine System Homeostasis and Integration of Systems Q10

Two hormones are involved in the combined production and release of milk. Which of them are involved in a positive feedback mechanism?

A

prolactin alone

B

oxytocin alone

C

both oxytocin and prolactin

Endocrine System Homeostasis and Integration of Systems Q11

Which of the following is not a hormone involved in regulating both the male and female reproductive systems?

A

FSH

B

LH

C

GnRH

D

PRH

Endocrine System Homeostasis and Integration of Systems Q12

In addition to the testes, what other endocrine gland produces a small amount of testosterone?

A

The adrenal medulla

B

The adrenal cortex

C

The posterior pituitary

D

The anterior pituitary

Endocrine System Homeostasis and Integration of Systems Q13

What gland produces the hormones that control prolactin levels?

A

The ovary

B

The posterior pituitary

C

The hypothalamus

D

The anterior pituitary

Endocrine System Homeostasis and Integration of Systems Q14

After a meal is consumed you would expect:

A

Blood glucose to go down and glycogen to go up.

B

Blood glucose to go down and glycogen to go down.

C

Blood glucose to go up and insulin to go up.

D

Blood glucose to go up and insulin to go down.

Endocrine System Homeostasis and Integration of Systems Q15

Which of the following is not properly matched?

A

Glucagon stimulates the conversion of glucose to fatty acids.

B

Triiodothyronine increases body heat production.

C

Thyroxine increases glucose oxidation.

D

Insulin stimulates glycogen formation.

Endocrine System Homeostasis and Integration of Systems Q16

Which of the following statements is correct:

A

Hyperthyroidism would be associated with too much iodine.

B

Hypothyroidism is associated with weight gain, cold-intolerance and fatigue.

C

Hypoglycemia is associated with reduced urine production.

D

Hyperglycemia is associated with too much insulin.

Endocrine System Homeostasis and Integration of Systems Q17

In addition to insulin and thyroid hormones, several other hormones affecting growth, repair and stress will directly or indirectly affect glucose levels in the blood. Which of the following would NOT be involved in this glucose regulation?

A

growth hormone

B

glucocorticoids

C

cortisol

D

calcitonin

Endocrine System Homeostasis and Integration of Systems Q18

Which of the following would not be stimulated by calcitonin?

A

decreased parathyroid hormone

B

decreased intestinal absorption

C

osteoporosis

D

increased calcium in urine

Endocrine System Homeostasis and Integration of Systems Q19

What other ion’s homeostasis would be linked to the calcium homeostasis regulated by these hormones?

A

phosphate

B

chloride

C

sodium

D

potassium

Endocrine System Homeostasis and Integration of Systems Q20

Which of the following is not a target of parathyroid hormone?

A

Skeleton

B

Intestine

C

Kidneys

D

skin

Endocrine System Homeostasis and Integration of Systems Q21

Which of the following disorders is a result of not being able to regulate calcium levels?

A

Osteoporosis

B

Hyperthyroidism

C

Wilson’s disease

D

Diabetes

Endocrine System Homeostasis and Integration of Systems Q22

Which of the following does not produce a hormone directly involved in regulating cell division and growth?

A

liver

B

hypothalamus

C

anterior pituitary

D

posterior pituitary

Endocrine System Homeostasis and Integration of Systems Q23

What is the effect of an overproduction of growth hormone in children and in adults?

A

In children it can cause excessive proportional growth; in adults it primarily affects the bones of the face, hands and feet.

B

It has the same effect of causing excessive growth of all bones in both children and adults.

C

In children it primarily affects the bones of the face, hands and feet; in adults it can cause excessive proportional growth

D

In children it can cause pituitary dwarfism; in adults it primarily affects the bones of the face, hands and feet.

Endocrine System Homeostasis and Integration of Systems Q24

Which of the following hormones is involved in short-term stress?

A

corticosteroids

B

cortisol

C

catecholamines

D

adrenocorticotropic hormone

Endocrine System Homeostasis and Integration of Systems Q25

Which hormone is not responsible for long-term stress response?

A

Adrenaline

B

Aldosterone

C

ACTH

D

Cortisol

Endocrine System Homeostasis and Integration of Systems Q26

Malignant cancer that invades the bone is the second most common cause of hypercalcemia (excess plasma calcium concentration). As it destroys the bone cells, it releases a substance that mimics the action of which hormone?

A

thyroid releasing hormone

B

calcitonin

C

thyroid hormones T3 & T 4

D

parathyroid hormone

Endocrine System Homeostasis and Integration of Systems Q27

Alcoholics typically have poor nutrition intake that can affect their intake of nutrients and often have reduced calcium and magnesium intake. The low magnesium decreases the body’s ability to secrete parathyroid hormone. This combined condition would put them at greater risk of developing which condition?

A

hypocalcemia

B

hypokalemia

C

hypercalcemia

D

hyperkalemia

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